1 definition
by
Scottie J + Road dog

A woman over the age of 65 who targets men at least 20 years her junior to date. Similar to a cougar but over the age of 65. Since saber-tooth tigers are extinct, it ties into the fact that these women are much older and near extinction themselves.

Girl 1: "Check out the geezer on that hot guy!"
Girl 2: "Oh yea, she's a total saber-tooth."